I have two nephews age 4 and 7 and my mom was wanting to teach them some basic Japanese. I was wondering if any of you have any ideas to teach younger children. If any of you have ideas for games or little lessons that will be entertaining and keep their attention I would like to hear from you.

Try flash cards. You could write really basic words... like こんにちは、 さよなら、 おげんきですか？、etc,. Explain what the 'o' means in ogenkidesuka, because I only learned the meaning.. a few months ago? xD If you have little building blocks, you could tape the Japanese vowels onto them. Just a few ideas!

Draw pictures on your flash cards and write the Japanese words in English (I mean romaji.) They might not pay much attention to the writing, but it will aid their learning when you pronounce slowly, with the picture displaying the contextual meaning